Table 2.

Comparisons of the mean (median) operative time between consecutive groups of mTKA and raTKA groups (subgroups of tens)

Consecutive groups of cases	Operative time (mins)		p value@
	mTKA	raTKA
	Mean	Mean
1–10	68.50	96.50	< 0.001
11–20	72.00	87.50	0.011
21–30	70.50	89.00	0.001
31–40	70.50	87.50	0.029
41–50	66.50	81.00	0.004
51–60	65.50	76.00	0.023
61–70	66.50	78.50	0.035
Sliding window
62–71	66.50	75.50	0.063
63–72	66.00	73.00	0.190
64–73	68.00	74.00	0.280
65–74	66.50	75.00	0.075
66–75	67.50	74.00	0.190
67–76	68.00	75.00	0.143
68–77	68.50	74.00	0.280
69–78	69.50	74.00	0.436
70–79	69.50	71.00	0.796
71–80	68.50	68.50	0.971
81–90	66.00	71.00	0.247
91–100	68.00	66.50	0.853

mTKA Manual total knee arthroplasty, raTKA Robotic total knee arthroplasty 

^@Tests were performed using the Mann–Whitney test